AD8284WCSVZ-RL

AFE General Purpose 1ADC 12Bit 1.8V/3.3V 64Pin TQFP EP T/R

Product Details

The AD8284 is an integrated analog front end designed for low cost, compact size, flexibility, and ease of use. It contains a 4-channel differential multiplexer mux, a 1-channel low noise preamplifier LNA with a programmable gain amplifier PGA and an antialiasing filter AAF, as well as one direct-to-ADC channel, all integrated with a single, 12-bit analog-to-digital converter ADC. The AD8284 also incorporates a saturation detection circuit for high frequency overvoltage conditions that would otherwise be filtered by the AAF.

The analog channel features a gain range of 17 dB to 35 dB in 6 dB increments, and an ADC with a conversion rate of up to 60 MSPS. The combined input referred voltage noise of the entire channel is 3.5 nV/√Hz at maximum gain. The channel is optimized for dynamic performance and low power in applications where a small package size is critical.

Fabricated in an advanced CMOS process, the AD8284 is available in a 10 mm × 10 mm, RoHS compliant, 64-lead TQFP. It is speci-fied over the automotive temperature range of −40°C to +105°C.

**APPLICATIONS**

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Automotive radar

  Adaptive cruise control

  Collision avoidance

  Blind spot detection

  Self-parking

  Electronic bumper

### Features and Benefits

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4 channel mux to LNA, PGA, AAF

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1 direct-to-ADC channel

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Programmable gain amplifier PGA

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Includes low noise preamplifier LNA

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SPI-programmable gain = 17 dB to 35 dB in 6 dB steps

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Antialiasing filter AAF

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Programmable third-order low-pass elliptic filter LPF from 9 MHz to 15 MHz

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Analog-to-digital converter ADC

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12 bits of accuracy up to 60 MSPS

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SNR = 67 dB

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SFDR = 68 dBc

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See data sheet for additional features